The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 30, 1997
Filed:
Mar. 29, 1996
Takahiro Miyagi, Tokorozawa, JP;
Shigeru Takaya, Tokorozawa, JP;
Yoshifumi Masunaga, Tokorozawa, JP;
Pioneer Electronic Corporation, Tokyo-to, JP;
Abstract
An optical pickup device includes an objective lens assembly including an objective lens facing a surface of an optical disk, an actuator base supporting the objective lens to be movable, and a body in which an optical element is accommodated, the actuator base being supported by the body to be slidable. The actuator base is provided with a first flat portion positioned in a vicinity of the optical disk surface and a second flat portion apart from the optical disk surface, the first and second flat portions being formed with first and second protruded pieces having spherical end surfaces, and the body is formed with first and second receiving portions against which the first and second protruded pieces abut, respectively. The optical body is composed of a first supporting portion for supporting the first flat portion, a second supporting portion for supporting the second flat portion and an intermediate portion disposed below the first flat portion.